br.com.davimonteiro.lotus_runtime.config.ConfigurationUtil.java Source code

Introduction

Here is the source code for br.com.davimonteiro.lotus_runtime.config.ConfigurationUtil.java

Source

/**
 * The MIT License
 * Copyright (c) 2015 Davi Monteiro Barbosa
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package br.com.davimonteiro.lotus_runtime.config;

import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;

import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.google.gson.JsonElement;
import com.google.gson.JsonIOException;
import com.google.gson.JsonParser;
import com.google.gson.JsonSyntaxException;

public class ConfigurationUtil {

    public static Configuration load(Path configPath) {
        Configuration config = null;

        GsonBuilder builder = new GsonBuilder();
        Gson gson = builder.create();

        try {
            config = gson.fromJson(new FileReader(configPath.toFile()), Configuration.class);
        } catch (JsonSyntaxException | JsonIOException | FileNotFoundException e) {
            e.printStackTrace();
        }

        return config;
    }

    public static Configuration load(String jsonConfig) {
        Configuration config = null;

        GsonBuilder builder = new GsonBuilder();
        Gson gson = builder.create();

        config = gson.fromJson(jsonConfig, Configuration.class);

        return config;
    }

    public static Configuration save(Path configPath, Configuration config) {
        GsonBuilder builder = new GsonBuilder();
        Gson gson = builder.setPrettyPrinting().create();

        JsonParser parser = new JsonParser();
        JsonElement jsonElement = parser.parse(gson.toJson(config));

        String json = gson.toJson(jsonElement);

        try {
            Files.write(configPath, json.getBytes());
        } catch (IOException e) {
            e.printStackTrace();
        }

        return config;
    }

}